SKY12232-21 Datasheet, PDF (1/10 Pages) Skyworks Solutions Inc. – High IIP3 2.65-3.65 GHz Voltage-Controlled Variable Attenuator

DATA SHEET
SKY12232-21: High IIP3 2.65-3.65 GHz Voltage-Controlled
Variable Attenuator
Applications
• Automatic power leveling/gain control circuits in cellular base
stations and point-to-point radio IF chains
• General wireless systems including WiMAX, LTE, WCDMA, VSAT,
and military communications
Features
• 2.65 to 3.65 GHz broadband operating range
• Minimum attenuation: 24 dB
• Control voltage range: 0 to 5 V
• High IIP3: +55 dBm
• Low current consumption: <2 mA @ maximum attenuation
• Small, MCM (8-pin, 4.9 x 3.2 mm) package (MSL1, 260 °C per
JEDEC J-STD-020)
Figure 1. SKY12232-21 Block Diagram
Description
The SKY12232-21 is a voltage-controlled variable attenuator from
Skyworks series of high 3^rd Order Input Intercept Point (IIP3)
components. The device has been designed to operate over the
2.65 to 3.65 GHz frequency band, but is specifically optimized for
use as a wide dynamic range, low distortion attenuator, centered
at 3.1 GHz.
The SKY12232-21 provides monotonic attenuation performance
over its entire control voltage range. This attenuator is comprised
of a pair of matched PIN diodes that terminate two ports of its
internal 90-degree hybrid coupler. The diodes are biased using an
external control voltage signal. The attenuator requires no external
components. It operates with a control voltage range of 0 to 5 V
and a 1.7 mA typical control current at maximum attenuation.
A functional block diagram is shown in Figure 1. The pin
configuration and package are shown in Figure 2. Signal pin
assignments and functional pin descriptions are provided in
Table 1.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201930D • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • January 14, 2013
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